【判断题】双重边际效应是指供应链上下游企业为了谋求各自利益最大化,在分散的,各自独立决策的过程中确定的产品价格高于生产边际成本的现象。
【单选题】Gina and her friends are singing and dancing to the music.
B.
compound subject + verb
C.
subject + compound verb
D.
compound subject + compound verb
【单选题】She is Gina Smith. Her ___ is Gina.
【判断题】工作接地分为直接接地与非直接接地(包括不接地或经消弧线圈接地或经电阻接地)两大类。()
【单选题】— ? Her name is Gina
【单选题】In the card ___ is her first name. [ ]
【简答题】语法填空。 Look at the girl. She is Gina Green. Green is her (1)_______ name. Her grandfather and grandmother (2)_______(be) in Japan. Her (3)_______ are in China. Her father is Jeff Green and her mother i...
【单选题】Gina is not , her clothes are everywhere.
【单选题】______ Gina. _______ is Gina. [ ]